Want to know why climate change denialists exist?

I think the point was 'at what point do you come down on this subject as to whether or not the steady and predictable increases in atmospheric CO2 levels move you to conclude global warming will or already is resulting and will continue'? Perhaps you did not see this info:

The above was from measurements from the middle of the Pacific Ocean in Hawaii. If you still want to play the game of 'I need more information, then you are just playing the Zeno's paradox game and there will never be enough info. To me though, a 33% increase in CO2 levels in 50 years in enough to see the obvious.